Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "Freight-Car Loadings, by Classes," in Board of Governors of the Federal Reserve System (U.S.), 1935- and Federal Reserve Board, 1914-1935. "May 1953," Federal Reserve Bulletin (May 1953) : 83-83. https://fraser.stlouisfed.org/title/62/item/21221/toc/430500 , accessed on April 17, 2024.